Fireproof safe and process of filling the walls of the same.



110.816.724. PATBNTBD APR. a', 190e.

vW. H. a. E. (LHALL. 'l PIRBPRooP SAFE AND P'Rocss oF FILLING'THB'WALLS oF 3fm.' SAME.

' APPLIOATION HLBD 11:15.21. 1905.

[fije/tor www@ S n? fr l .e i 5 facture, resulting in bulging of the wall-plates UNITED' sTATEs wiLLiAM n; HALL, or GLEN-DALE, 'f-NAri,-

AND EDWARD c. HALnor CINCIN- oHio. f y

FIREPROOF SAFE ANl) Fll-UCESS OF FILLING THE WALLS 0F THE SAME.

' Naeieffai.

Specification of Letters Patent.

Patented April 3, 1906.

. Appiimeon fina retmry 21.1905. serai No. 246,742.

Tri Aia/ ZZ whom, it concern:

,i residing at Glendale, and EDWARD C. HALL,- residing at Cincinnati, in the county of Ham- Ailton and State' of Ohio, citizens .of the United States, have jointly invented certain' 'v new and useful Improvements in Fireproof Safes andProcesses of. Filling the Walls of' AthefSaine, of which the following is a specification.' l y e It'has, heretofore been the experience of safe. manufacturers'. that in fireproof safes. vhaving cement or similarly filled Walls, especially in the thick-walled safes of that character, the Walls have eX anded after manuand consequent injury to the safe. This eX- p 'pansion or bulo'ing has at times taken place immediately after manufacture, but usually at varying longer periods after manufacture ranging to six and ei ht monthsand at times a year or more, so t at' upon shipment of a safev the manufacturer could not be certain .whether .the safe would retain its shape, and safes being so heavy and bulky and the cost of shipment and hauling so great serious damage has resulted to the manufacturer from necessity of repair or replacement and loss of prestige with the trade.

vSafes ofthe character mentioned have heretofore had their walls and doors filled 'with hydraulic cement or similar composition, which upn'setting. forms a solid hardened filling mass for the interspacesof the r`walls and door. `After completion of the safe further action has taken place in this mass, which it is believed-is chemical in its nature, resulting, however, in the expansion or bulging stated.

It is the object of our invention to remedy this difficulty.

Our' invention has` the further object of providing a safe which for a given bulk shall be lighter inweight, have its fire-resisting ca pacity increased ,and the tendency of thecondensation of moisture or presence of'dampness in its interior reduced.

Our invention consists in providing the filling V.for the'interspaces of the vsafe with spaces or. cavities for relieving the walls of said interspaces from undue outward pres.- sure, in novel process for providing said filling with'spaces or cavities, vand in carrying out our invention we prefer to previously l `form, suitable holloiir bodies and suitably 'dis- Be it known that we, WILLiAM H. HALL,

pose them in the filling so that said hollow odiesmlay form said spaces or cavities, and theinvention will be readily understood from the' following description and claims and from the drawings, in which-'jpartly broken away for showing our iinproved construction. Fig. 2 isa horizontal cross-section taken on a line corresponding t the line of Fig. 3. Fig. 3 is a vertical section of our improved device, taken on a line corresponding to the line y y of Fig. 2., Fig. 4 is 'a plan view of a safe, showing the cavi-v ties in its top in dotted lines. Fig. 5 is a perspective view, partly broken away, showing one of 'the hollow bodies of an advisable form used in'carrying out our invention.

The safe is shown at 1, the skeleton of vwhich comprises an inner casing 2 and an outer casing 3, with. a door 4 forming a closure-therefor, the door being liollow'in its skeleton form.` In lireproof-safe construetion the skeleton and the door-frame are usulally of metal, such as sheet iron or steel plate suitably braced or connected, and for the purpose of our invention may be of any suitable form, size, or style. The casings form walls between which our improvement'is loprovement. v

-ln fireproofing safes it has heretofore been a usual practice to'fill the interspaces or hollows between the casings and of the door with a hydraulic cement or concrete in a solid mass throughout, resulting in the objections stated. We provide spaces or cavities 5 within the filling material, preferably the following manner: Hollow bodies are first formed. These'hollow bodies may be of any suitable form and material and are suitably disposed in the fireproof material of the safe. We have shown these hollow bodies, or, as they may be termed, envelope for the spaces or cavities in the filling of the safe, in the form of flattened tubes 6, having one or more closed ends 7. le prefer .to construct them of material similar to the fireproof filling of the safe-for instance, fireproof cement or concrete, which is a composition well known lin the trade and usual y consists of Afive parts, in measure, of hydraulic cement, one p art, in measure, of sand, and four parts,

in measure, of Water, which proportions may,"

cated, forming. walls containing our im- Figure I is a perspective view of a safe roo' ' era-bly molded while the composltion is still wet orl plastic and then permitted to dry sufficiently to permit thelr introduction into,

, ing unfil 'filled thereabout to the dotted line b. r space-envelops may then be set thereabove within its walls.

and the .further filling ofsaid interspaces while said bodies or envelops retain their gen eral shape. We prefer to air-dry said bodies before their introduction intosaid interspaces. After the introduction of said bodies into the fireproof interspaces of the safe the Iportions of said interspaces remained are filled with said fireproof filling and the whole permitted to dry, thereby forming a fireproof filling provided vwith spaces or cavities. The space-envelops are preferably porous for absorbing moisture from the Afi ling thereabout andD becoming bonded therewith for forming a homogeneous mass.

an exemplification of the manner in which a safe may be fireproofed by ourl improved process it may be stated that the bottomwall of the interspace may be provided with a layer of said fireproof filling` in Wet orv plastic state to the dotted linea of 3, the space-envelops then placed thereon in drier state, and filling material in Wet or plastic Sfte e and the interspace filled with wet or plastic filling material to the dotted line c, when other space-envelops may be laid thereon and thebalance of the interspace filled with the wet or plastic filling material and the ytop plate of the safe then secured in place.

The door may be filled in similar manner,

referably first laying the same upon its sideQ- n our improved process and construction 1fexpanding action takes. place in said Afire proof filling it is expanded in said spaces or cavities without detrimentally affectingv the lates of the safe, said space-sor cavities relieving the ressure between saidplates, the cavities an theenvelops affording less resistance to the expanding action than the skeleton of the safe 4and the safe retaining its shape irrespective of' the action taking place lf, for instance, chemical action should take )la-ce in the fire proof cement or concret-e fililing due to the presence of unslaked lime or other cause, the said filling being slightlyporous, the gases created will follow the course. of least resistance-- namely, to the cavities-and expanding of the filling itself will also follow the course of least resistance-namely in the. cavities-in-- xous mass with said fillinel stead of, as heretofore, bulging the safe plates. Our improvement also lightens the safe and increases its fire-resisting ualities by providing air-,spaces Within the ody of the fireproof filling. Our invention further minimizes the condensation of moisture or dam ness in the interior of the safe, due to the ifferencein temperature'between the interior and exterior of the safe often prevalent, by providing air-spaces Withinithe walls of the safe.

Having thus fullydescribed-our invention, What we claim as new, and 'desire to secure by Letters Patent, is l 1. In a. fireproof safe, the combination with an innerl casinV and an outer-casing forming inters'pace t erebetween, and fireroof filling for said inters ace, said fireproof lling containing previous y-formed collapsible hollow bodies embedded in and forming homogeneous mass with said filling, substantially as described.

'2. In a yfireproof safe, the combination with an inner casing and an outer casing forming interspace therebetween, and cement filling for said interspace, saidr filling containing previously-fornied hollow cement bodies embedded in and forming homogeneg, substantially as described.

3. The process of filling the interspace of a safe which consists in forming bodies having cavities, and then embedding said bodies in `the filling for said interspace, said bodies being drier thanV said filling when embedded therein, and said bodies and' filling being of lhomogeneous composition for forming a homogeneous mass when saidfilling is set, subst antially as described. v

4, The process of filling the walls of a safe Which consists in forming hollow hydraulic `cementbodies, lermitt-ingithe same to dry,

and then embed ing the same'in said walls in a hydraulic-cement filling while the latter is in wet state, whereby moisture fromv said filling is absorbed bvsaid'hollow bodies, and then permit-ting said filling and bodies t0 dry, whereby said filling and bodies form ahomogeneons mass, substantially as described.

ln testimony whereof` we have signed our names hereto in the presi-nce of two subscribing witnesses.

WILLIAM ll. HALL. EDWAR I.) (`..l HALL.

'itnesses:

HENRY X. BAUER, AUGUST F. HERBSLEB.

ioo 

